English Factorial Cited by user David Eppstein on 20 Dec 2021 In mathematics, the factorial of a non-negative integer, denoted by, is the product of all positive integers less than or equal to :
English Dyadic rational Cited by user David Eppstein on 14 Jul 2021 In mathematics, a dyadic rational or binary rational is a number that can be expressed as a fraction whose denominator is a power of two.